REDDY, Indira. Revision on Virtual Private Network (VPN) Protocols and Security. Journal of Information, Communication and Intelligence Systems, [S. l.], v. 1, n. 1, p. 26–32, 2021. DOI: 10.33193/JICIS.1.1.2021.26. Disponível em: https://jicis.net/index.php/pub/article/view/26. Acesso em: 5 may. 2026.